Might have been caused because of the way she uses her voice? She puts on those screechy things at the end of every sentence, she forces her voice to sound really raspy, generally overusing her vocal chords by forcing her tone? I'm not a Diana fan, nor a vocal expert but it's a shame, because I know people who have had laryngitis/tonsilitis and it was awful for them. I am a little ticked off that she didn't have to perform, whereas the others did... but if it would damage her singing forever, I wouldn't wish that upon any aspiring artist. Still think she's overrated though.